FIG. 5.
Restoration of Spa32 function by Salmonella InvJ. (A) Amino acid sequence alignment of S. flexneri Spa32 and S. enterica serovar Typhimurium InvJ. (B) Electron micrograph of the purified type III secretion complexes from the spa32 mutant carrying the invJ gene (a), fliK gene (b), or yscP gene (c). Scale bars, 100 nm.